Funny. When our neighbors brand new heat pump was installed and exceeded noise levels it was moved ASAP. While inspecting it they decided that our furnace vent of 30 years was also above the noise level and threatened to fine us ASAP. The City had no tolerance and we had numerous emails and face visits from a very nasty city employee. Our furnace company was baffled about what the problem was. Yet, how long has this hum been going on? They should measure the decibals and fix.

Many thanks and kudos to the community and WSB for such thorough follow up! I commend both LaFarge and CalPortland for dedicating significant resources to work with the community too. They all have schedules and budgets to meet and taking the time to work with the community on this issue and committing to finding and creating a solution is not cheap and I absolutely appreciate their management for taking the right steps and being a considerate neighbor.

As I have mentioned and Jim and others have concurred with is that the irritating quality of the hum is linked to the beat frequency…wa…wah…waah..ah….
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They should sound proof the source which may lower he sound. But synchronizing the motors making the noise would make the resultant “hum” more of a “white noise”. In any case the noise in High Point should not be above standards for residential communities.

Thank you to WSB and all the people who have researched and reported on this. As I listen to it through my closed windows while I think about going to bed, I am glad that maybe someday this will stop. Or be done only during normal working hours, 8-5. Not Labor Day, nights or weekends.

People, how fast do you think it takes to do an adequate job of soundproofing and hiring a consultant, etc etc. They said the ship is on a schedule and they have a commitment to get it unloaded by a certain date. They can’t just stop it right this minute and wait a couple of weeks till they get it all figured out. That would cost them business, and business brings jobs. They’ve committed to finding a solution. What more could you want in two days’ time?

E – regarding the timetable: This doesn’t necessarily speak to everyone’s experience, but from our standpoint, there was a sudden outbreak of widespread reports around Labor Day weekend, then nothing until suddenly on Monday night, they came in from all over. Research indicates a similar ship was undergoing a similar offloading operation right around Labor Day weekend. And this particular ship arrived, according to an online log, literally hours before the reports started coming in Monday. It would require an extensive amount of research to try to cross-reference flurries of posts in our Forum, or any other anecdotal evidence, with past operations like this. All I think everyone is speaking for now is: This is what’s been heard the past few nights. And its source has been traced. – TR

AJP has got it right. You can’t fix what you don’t know about. It usually takes a few days to even start the process (think about your last auto repair: The mechanic didn’t magically start working that night and you car was ready by the time you left for work). CalPortland has even started working on a problem that isn’t totally confirmed yet.
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I appreciate Lafarge and CalPortland for being as good a neighbor as an industrial company can be. I am sure this barge has been coming to unload periodically for years and they probably always made that noise but perhaps something has recently made it louder (equipment wear, insulation fell off, etc…) and nobody at the plant really noticed the change until now.

How long have people heard the hum? Have there been some new machinery updates in the past few months that are different from the past few years when nobody heard the hum? I’m curious since it would only make sense there had been some change in what is being used if that hum is caused by a pump transferring grains and such. Have there been any buildings removed that at one point acted as a baffle for the sounds? Seems fishy to me <– ;)

Carolyn mentioned that the city came out today and got lower levels. Julie, meantime, has had recordings in the 60 dBs the past few nights. Carolyn believes CP’s commitment is sincere regardless of whether “illegal” noise is determined, so let’s see what happens … TR

I live in Cottage Grove, between Highland Park and High Point and finally got to hear the hum tonight. Never noticed it before, behind the police sirens and train whistles. Doesn’t bother me, I actually find it soothing, like white noise.

yep, This week the noise has been noticibly louder. and Im clear over in Westwood. This is the kind of stuff that puts people on edge. A perpetual anoying noise that’s “part of living in the city” then some day,,,,, snap. If they really are doing something about it like they say they will, then I fully expect NOT to ever hear this noise agian after the current shipment is offloaded. If we do hear it again maybe we need to march our butts down there and protest. Put a little interuption in THEIR routines for a change. When our complaining affects their profits what you want to bet THATS when the problem will really be solved.

8am Friday 9/28 – Have they changed something? I hear it loud and clear at our house (down the other side of the hill around 50th and Edmonds). This is the first time I’ve heard it, or maybe I’m only just now recognizing it.

Genessee neighbor, your problem was that your furnace noise was occurring when the city inspectors are at work. If a noise is after hours, they can’t do anything about it. Unless of course, it might be mating fish and then no resource will be spared to record it. The next time my neighbors are loud, I will call and say “THE MATING FISH ARE GOING CRAZY NEXT DOOR!”

It’s curious to hear that people in some locations were hearing this for the first time last night or this morning. From our place, two blocks down the hill west of Riverview Playfield, it had been loud for the past three nights but then suddenly last night it was so quiet when I was awake about 2:15 that I thought the unloading of this ship must have ended. I couldn’t hear it at all when I got up at 5:25 this morning either. It sounds like some object (another ship?) must be moving in between CalPortland and our part of West Seattle and deflecting the sound to new areas. Maybe they can find something big enough to keep the noise out of West Seattle entirely?

Thank you WSB/TR for addressing my question/statement. I still have several concerns about the “Hum” when I first started to hear it a few years ago when we bought our house in the “Sunrise Heights” neighborhood I would only notice the sound would start around midnight and last a few hours. The first couple time I heard it it almost sounded like a helicopter off in the distance circling because the sound would gradually come stay a short amount of time and then gradually leave. I didn’t think much of it until I read something from my neighbor of facebook and how the “Hum” kept her up all night. Then recently when the WSB and King 5 started with the story I was telling my mom about it and she said that it sounded like a power serge of some sort and maybe it was the Myrtle Street water tanks filling up or powering on. The “Hum” that I have been hearing lately that is the ship is different than the “Hum” I have heard in the past. I do appreciate the WSB for trying so hard to tack it down and get the wheels going on how to “fix” it. I am wondering if anyone else has thought about the water towers around the city. Or anything else that would need to power up like that. I just don’t think it is the “industrial shop vac” because from my house it sound like a shop vac not a gradual hum.

sophista-tiki makes a good point about noise pollution. This problem doesn’t get nearly enough study or attention for the dramatic, subliminal, detrimental effect it has on humans and other organisms. It should not be dismissed as just part of life in the big city.

I definitely appreciate all the sleuthing and reporting. The frequency has changed, however, since Friday night and has NOT gone away with the conclusion of the ship offloading. It now sounds like airplane engines perpetually ramping up. It is also harder to drown out with white noise while trying to sleep. At this point, I can barely stand to be home during the day (Arbor Heights).

I was home all weekend (SW Avalon and SW Genesee by the golf course) and there was a definite airplane engine sound both Saturday and Sunday nights starting arond 11:00 p.m. and going all night both nights. Thought there were helicopters going on but it went on too long.

I live in Kitsap County and have been hearing a hum the last few years all over Puget Sound and in Mason and Jefferson Counties. I hear it in the woods if the wind isn’t blowing. I don’t remember exactly when it was that I first heard it, but I thought it was a loud and / or faulty power transformer. Soon I realized it was everywhere when other noise doesn’t drown it out.